6kv slip ring motor

Series：YR-HV
Protection level：IP23
Voltage range：3000V±5%,3300V±5%,6000V±5%,6600V±5%,10000V±5%,11000V±5%
Power range：200-5600 kW
Application：hoist, rolling mill, wire drawing machine.
Advantage：low noise, small vibration, reliable performance, easy installation and maintenance.
Standard: This series of products complies with JB/T10314.1-2002 and JB/T7594 standards.
Others： SKF, NSK, FAG bearings can be replaced according to customer requirements.

Send Inquiry Download

Product Description

6kV Slip Ring Motor YR-HV Series — High-Voltage Wound Rotor Solution for Heavy Industry

The 6kv slip ring motor YR-HV series from XCMOTOR (Shaanxi Qihe Xicheng Electromechanical Equipment Co., Ltd.) is designed for heavy-duty industrial operations that demand reliable high starting torque and stable load control. Covering a power range of 200–5600 kW, the series supports voltage inputs from 3000V to 11000V (±5%) and meets IP23 protection standards. It complies with JB/T10314.1-2002 and JB/T7594, and is backed by certifications including CCC, CE, ISO9001:2000, CRCC, CQC, UL, and GOST.

About XCMOTOR

XCMOTOR is a high-voltage wound rotor motor manufacturer and solution provider based in Shaanxi, China, with over 20 years of operation in the industrial power equipment sector. The company maintains long-term supply relationships with brands including ABB, Siemens, Wolong, NEC, SIMO, PINXING, XEMC, and CHANGSHA, serving as a sourcing and configuration partner for 30+ motor manufacturers.

Production is managed through a SAP factory management system, which tracks each stage from material procurement through final testing. Motor selection and configuration are based on the actual operating conditions provided by buyers rather than standard catalog defaults.

Common Sourcing Challenges and How YR-HV Addresses Them

Buyers sourcing high-voltage slip ring motors for heavy industrial use often encounter a predictable set of problems. The table below maps each challenge to a specific YR-HV design or service feature.

Common Challenge	YR-HV Response
High inrush current during startup	Wound rotor design allows external resistance insertion to reduce starting current
Torque control under variable loads	Adjustable rotor circuit resistance enables speed and torque regulation
Non-standard installation dimensions	Custom dimension adjustment available per project
Bearing performance in harsh environments	SKF, NSK, or FAG bearings selectable based on site conditions
Vibration and noise in continuous operation	IP23 protection with low-noise, low-vibration mechanical design

Technical Design

The YR-HV series is a wound-rotor type, which means that the rotor windings are connected to external resistance using slip rings. This arrangement allows the motor to start with a low inrush current – a necessity for heavy equipment such as mills, hoists and crushers where great starting torque is required without electrical load on the supply network.

When the motor is accelerated, the rotor resistance is reduced step by step, giving a smooth ramp-up of the torque. This is especially true for rolling mills and wire drawing machines where sudden acceleration creates product flaws or mechanical wear.

The slip rings are made of electrically conductive metals such as brass or silver alloy with carbon-graphite or silver-graphite brushes used to maintain stable contact across the complete rotation cycle. This guarantees a trustworthy electrical transfer between fixed and rotary elements at any operating speed.

Technical Specifications

Parameter	Specification
Series	YR-HV
Protection Level	IP23
Power Range	200–5600 kW
Voltage Range	3000V, 3300V, 6000V, 6600V, 10000V, 11000V (±5%)
Rotor Type	Wound rotor with slip rings
Applicable Standard	JB/T10314.1-2002, JB/T7594
Bearing Options	SKF / NSK / FAG (customer selectable)
Noise & Vibration	Low noise, small vibration design
Installation	Designed for straightforward installation and maintenance access

Production Process

Material sourcing follows verified supplier requirements — bearings are sourced from SKF, NSK, or FAG depending on the customer specification. Winding production follows insulation standards applicable to high-voltage operation. After assembly, each unit undergoes no-load and load testing before shipment.

The SAP factory management system tracks each production stage, reducing scheduling errors and improving delivery accuracy. Custom dimension requests are processed during the design phase so that modified units go through the same production and testing sequence as standard models.

Industry Applications

The 6kv slip ring motor is suited for applications where high starting torque and load adaptability are primary operating requirements. The YR-HV series is used across the following industries:

· Mining & Metallurgy — rolling mills, wire drawing machines, ore crushers

· Material Handling — cranes, hoists, conveyor systems

· Building & Construction — elevators and lifting equipment

· Energy & Utilities — large pumps, fans, and compressors

· Process Manufacturing — equipment requiring variable speed and load adaptation

The wound rotor design allows the motor to absorb sudden load changes without tripping or thermal shutdown, which is relevant in applications where load profiles are irregular or frequently shifting.

application

Customization Options

XCMOTOR configures each order around the buyer's site conditions. The following parameters can be adjusted:

· Voltage level: 3000V, 3300V, 6000V, 6600V, 10000V, or 11000V

· Power output: Within the 200–5600 kW range

· Bearing brand: SKF, NSK, or FAG

· Physical dimensions: Modified to match existing installation frames

· Shipping mode: Sea freight, land freight, air freight, or multimodal transport, planned per project

Configuration recommendations are based on the operating environment information provided by the buyer.

Certifications

All YR-HV motors are shipped with documentation for the following certifications:

CCC · CE · ISO9001:2000 · CRCC · CQC · UL · GOST · ZDHY Environmental Management · China Energy Saving Production Certification

These certifications cover electrical safety, environmental compliance, energy efficiency, and railway-grade quality requirements.

Supplier Capabilities

· 20+ years supplying industrial power equipment

· Supply relationships with 30+ motor manufacturers, including ABB and Siemens

· SAP-managed production tracking

· Full certification documentation provided with each order

· Pre-sales technical consultation available

· After-sales support with engineers assigned per project

xcmotor

FAQ

Q: What is a product used for?

A: It is used in heavy-duty applications such as hoists, rolling mills, cranes, and wire drawing machines — environments where high starting torque and load regulation are required.

Q: What is the difference between a slip ring motor and a squirrel cage motor?

A: A slip ring motor uses a wound rotor with external resistance control, which enables higher starting torque and adjustable speed regulation. Squirrel cage motors have lower initial cost but provide less control over starting current and torque.

Q: What are the trade-offs of a slip ring motor?

A: The wound rotor design with slip rings, brushes, and short-circuiting devices involves higher initial and maintenance costs compared to squirrel cage motors. Speed regulation under external resistance operation can also be less precise at certain load ranges. For applications where these characteristics are acceptable, the design offers clear advantages in starting performance and load control.

Q: Can the YR-HV motor be configured for non-standard voltages?

A: The YR-HV series supports 3000V, 3300V, 6000V, 6600V, 10000V, and 11000V (all ±5%). Physical dimensions can also be adjusted to match your installation requirements.

Q: Which bearing brands are available?

A: SKF, NSK, and FAG bearings are available. Selection is based on the operating environment and buyer preference.

Q: What certifications does the YR-HV motor carry?

A: The motor is covered by CCC, CE, ISO9001:2000, CRCC, CQC, UL, GOST, and China Energy Saving Production Certification.